28972454

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 57024000

約数和(自身を除く): 28051546

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 43, 86, 119, 133, 149, 238, 266, 298, 301, 323, 602, 646, 731, 817, 1043, 1462, 1634, 2086, 2261, 2533, 2831, 4522, 5066, 5117, 5662, 5719, 6407, 10234, 11438, 12814, 13889, 17731, 19817, 27778, 35462, 39634, 44849, 48127, 89698, 96254, 97223, 108919, 121733, 194446, 217838, 243466, 336889, 673778, 762433, 852131, 1524866, 1704262, 2069461, 4138922, 14486227, 28972454]

約数ペア:

[(1, 28972454), (2, 14486227), (7, 4138922), (14, 2069461), (17, 1704262), (19, 1524866), (34, 852131), (38, 762433), (43, 673778), (86, 336889), (119, 243466), (133, 217838), (149, 194446), (238, 121733), (266, 108919), (298, 97223), (301, 96254), (323, 89698), (602, 48127), (646, 44849), (731, 39634), (817, 35462), (1043, 27778), (1462, 19817), (1634, 17731), (2086, 13889), (2261, 12814), (2533, 11438), (2831, 10234), (4522, 6407), (5066, 5719), (5117, 5662)]